All these hearings and outcry about Tiktok security and Privacy concerns is just a big farce.
If legislators are concerned about privacy, start with looking at Google.
Google knows your precise location at all times (and hands it to Law enforcement during with a geofence warrant. This was used in falsely persecuting Jan 6 protesters). Google has your entire contacts list (and so does Facebook & Microsoft), they know what apps are running on your device, know your workplace, where and when you purchase stuff (if you use Google Pay), they have access to your email contents and drive files (remember that when you backup your Whatsapp chats without using End-to-End encryption. See: https://faq.whatsapp.com/1246476872801203), facial recognition data.
Google even uses your opinions and stance to manipulate what info they show you in search and to enhance their misinformation pre-bunking programmes. (See: https://www.theepochtimes.com/google-expanding-prebunking-campaign-in-germany_5054070.html)
Microsoft literally dominates the Worker and Student portals and enterprise mailing for 90% of organisations in North America (I guessed that number from personal experiences), with Google probably dominating the rest because these organisations refuse to use privacy-friendly alternatives like Wire, Tutanota, etc.
Apple won't even let you go dark from their location tracking because your iPhone becomes an airtag beacon even when switched off. LOL.
I don't need to point out Facebook/Instagram/Whatsapp. That's obvious.
So, there's no real basis behind any attempted ban of Tiktok alone as it's not any more invasive than other big tech companies. Ban it on government-owned devices if you're concerned about backdoors. There are possibly backdoors in every other software/services we already use anyway.
The true reason to ban it might be the degenerate crap Tiktok promotes, but Instagram & Pornhub are no different. Not to mention, banning online things for immoral content conflicts with the essential Right to Free Speech.